. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. EEPTILIA. 77 No. 291. Archegosaurus Decheni, Goidf. Head, on slab. This "primeval lizard" disputes with the Sauropus of Lea for the honor of being the first of air-breathers. Goldfuss considered it a Saurian; Agassiz claims that even in its limbs—its most Keptilian feature— it is closely like Ganoid fishes of the genus Polypterus; while the majority of naturalists regard it as a Proteoid Salamandrian. It had sculptured bony plates on the head like Gan
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. EEPTILIA. 77 No. 291. Archegosaurus Decheni, Goidf. Head, on slab. This "primeval lizard" disputes with the Sauropus of Lea for the honor of being the first of air-breathers. Goldfuss considered it a Saurian; Agassiz claims that even in its limbs—its most Keptilian feature— it is closely like Ganoid fishes of the genus Polypterus; while the majority of naturalists regard it as a Proteoid Salamandrian. It had sculptured bony plates on the head like Ganoid fishes; and the greater part of the skeleton retain- ed its cartilage. The skull is depressed and triangular, and the lower jaw differs from that of Fishes in the great length of the angular pieces, but resembles it in simplicity. The teeth are conical and of labyrinthic structure, and implanted in sockets. This specimen was discovered in the coal-field of Saarbriick, Rhenish Prussia, and is in the Cabinet of the Natural History Society at Bonn. Size, 8x5. Price, -$ No. 292. Labyrinthodon (Mastodonsaurus) Jaegeri, Owen. Head. This is the largest known Batrachian having labyrinthic teeth, i. e. a convergence of nu- merous inflected folds of the external layer of cement towards the pulp-cavity. The form of the animal was something between the Toad and Land- Salamander. The body, estimated at nine feet in length, was covered with scales. The head was triangular; the nostrils very small; and the orbits situated nearly halfway between the fore and back part of the skull. In this specimen the skidl and lower jaw are firmly closed. It was found in the Upper Trias (Keuper) near Stuttgardt, Wirtem- berg, and is in the Museum of that city. Size, 2 ft, 6 in. x 2 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origin
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
